Add or subtract, as indicated. Assume that all variables represent positive real numbers.
- 6
- 2
A. -67
B. -8
C. -67
D. -8
Answer: C
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Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (4, 7); parallel to x + y = 14
A. y = x + 3 B. y = x - 3 C. y = -x + 11 D. y = -x - 11
Determine whether the sequence is arithmetic.2, -3, -8, -13, -18, ...
A. Arithmetic B. Not arithmetic
Find the equation that the given graph represents and give the domain, range, and interval(s) over which the function is increasing and decreasing.
A. P(x) = -x5 - 3x2 + 6; domain: (-?, ?); range: [3.75, ?); Increasing over [-2.21, 0] and [2.21, ?); Decreasing over (-?, -2.21] and [0, 2.21] B. P(x) = x4 - 3x2 + 6; domain: (-?, ?); range: [3.75, ?); Increasing over [-1.24, 0] and [1.24, ?); Decreasing over (-?, -1.24] and [0, 1.24] C. P(x) = x5 + 2x3 + 6; domain: (-?, ?); range: [4.86, ?); Increasing over [-1.64, 0] and [1.64, ?); Decreasing over (-?, -1.64] and [0, 1.64] D. P(x) = x6 - 2x2 - 6; domain: (-?, ?); range: [4.86, ?); Increasing over [-.98, 0] and [.98, ?); Decreasing over (-?, -.98] and [0, .98]
Find a positive value of the given variable so that the trinomial is factorable.x2 + bx - 2; b = ?
A. 4 B. 3 C. 2 D. 1